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LOT 2492
Natural History - Large Meteoritic Tektite Group [12]
1 7/8 in. (969 grams total, 47-83 mm).
Meteoric glass, melted terrestrial rock splashed from an impact crater, most roughly ovoid in shape. [12, No Reserve]
ProvenanceFrom Mexico.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
Tektites are lumps of black or dark grey natural glass produced from melted crustal rocks that are caused by large hypervelocity meteorite impacts on sediments.
CONDITIONTimeLine Auctions follows a vetting process to ensure the authenticity and legality of all items, reinforcing our commitment to integrity and responsible trading. Each antiquity, antique, and coin lot undergoes thorough examination by a vetting committee of at least ten external specialists, professional trade association members, scientists, and archaeologists: Our Vetting Process
AUCTIONS:
TimeLine is a leading auction house specialising in antiquities, ancient art, collectables, natural history, coins, medals, and books. Our auctions offer museums, collectors, historians, and enthusiasts the opportunity to acquire unique and historically significant pieces.
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Natural History - Large Whitby Dac Fossil Ammonite
Lower Jurassic Period, Toarcian Stage, circa 180 million years B.P.Sold for (Inc. bp): £52
Hildoceras sp. in an irregular shale pebble. 1.08 kg, 13.5 cm
From Whitby, UK. From a Lincolnshire, UK, collection. -
Natural History - Cambropallas Telesto Fossil Trilobite
Devonian Period, 416-359 million years B.P.Sold for (Inc. bp): £46
A large Cambropallas telesto trilobite on a matrix. 1.53 kg, 27 cm
From Djbel Ougrat, Morocco, North Africa. From a Cambridgeshire, UK, collection. -
Natural History - Large Historic Cut & Polished Porphyry Slice
Sold for (Inc. bp): £780
Comprising lacquered porphyry slice of irregular shape, cut and polished on one side, probably recycled material mined in ancient Roman times between the 1st and 5th century A.D. 917 grams, 28 cm
From Egypt. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).
Mons Porphyrites (today Jabal Abu Dukhkhan) is the mountainous site of a group of ancient quarries in the Red Sea Hills of the inhospitable eastern desert in Egypt, a five day trip from the Nile during Roman times. They were discovered by Caius Cominus Leugas in 18 A.D., and during the Roman Empire the mines officially belonged to the emperor and were the only known source of the Imperial Porphyry, Mons Porphyrites. This dark purple stone was associated with royalty and used for prestigious sculpture and architecture. The location of the mines was lost some time in the 5th century, and rediscovered in the early 19th century. Excavations in the area have revealed the well-preserved quarries and the dwelling places of the quarry men, and also thousands of ostraca have been discovered containing messages that provide details of how the quarrying took place, and of how the highly skilled quarrymen ordered their food.
